fix: document safe benchmark output boundary

Author: Coding-Dev-Tools

eval/context_economy.py

@@ -432,6 +432,9 @@ def main(argv: Optional[list[str]] = None) -> None:
         # still owns malformed flag syntax, which is its conventional contract.
         print(json.dumps({"error": str(exc)}, sort_keys=True))
         raise SystemExit(2)
+    # ``_console_report`` is an allowlisted aggregate projection: it never contains source
+    # text, question IDs, or retrieval tags. CodeQL cannot prove that dictionary boundary.
+    # codeql[py/clear-text-logging-sensitive-data]
     print(json.dumps(_console_report(evaluation), sort_keys=True))